A HUGE asteroid is expected to fly by Earth today.

Nasa has said there is no danger that the rock will hit our planet.

It is expected to pass us at a distance of 1.1 million miles away, and could be visible in the sky.

The rock, called 2014 JO25, is due to pass at around 1.24pm British time.

It is at least 650m, and is about as wide as the Rock of Gibraltar.

It is the nearest JO25 has come to Earth for at least 400 years, and it won’t be back for another 500 years